@inproceedings{DAHL79,
  author	= {Dahl, V.},
  year		= {1979},
  title		= {Quantification in Three-valued Logic for Natural Language Question-Answering Systems},
  booktitle	= {Proceedings of IJCAI'79},
  note		= {pages 182-187, IJCAI'79, Tokyo, August 1979},
  organization	= {IJCAI}
}